[Qemu-devel] [PULL 66/96] acpi: add aml_arg() term

[Michael S. Tsirkin]

From: Igor Mammedov <address@hidden>

Signed-off-by: Igor Mammedov <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
 include/hw/acpi/aml-build.h |  1 +
 hw/acpi/aml-build.c         | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/include/hw/acpi/aml-build.h b/include/hw/acpi/aml-build.h
index e7fa977..63e9754 100644
--- a/include/hw/acpi/aml-build.h
+++ b/include/hw/acpi/aml-build.h
@@ -64,6 +64,7 @@ Aml *aml_name(const char *name_format, ...) GCC_FMT_ATTR(1, 
2);
 Aml *aml_name_decl(const char *name, Aml *val);
 Aml *aml_return(Aml *val);
 Aml *aml_int(const uint64_t val);
+Aml *aml_arg(int pos);
 
 /* Block AML object primitives */
 Aml *aml_scope(const char *name_format, ...) GCC_FMT_ATTR(1, 2);
diff --git a/hw/acpi/aml-build.c b/hw/acpi/aml-build.c
index 8207d9c..99d213c 100644
--- a/hw/acpi/aml-build.c
+++ b/hw/acpi/aml-build.c
@@ -397,6 +397,17 @@ Aml *aml_name_decl(const char *name, Aml *val)
     return var;
 }
 
+/* ACPI 1.0b: 16.2.6.1 Arg Objects Encoding */
+Aml *aml_arg(int pos)
+{
+    Aml *var;
+    uint8_t op = 0x68 /* ARG0 op */ + pos;
+
+    assert(pos <= 6);
+    var = aml_opcode(op);
+    return var;
+}
+
 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefIfElse */
 Aml *aml_if(Aml *predicate)
 {
-- 
MST